Trap-flush.



No. 705,933. Patented July 29, |902.

.1. E. KEYT..

TRAP FLUSH;

(Application le d July 5, 1901,

(lo Model.)

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UNITED STATES PATENT GFFICE.

JOHN RHEYT, OF SAN FRANCISCO,CALIFORNIA,l ASSIGNOR OF ONE-HALF To J.RAYMOND SMITH, OF SAN FRANCISCO, CALIFORNIA.

TRAP-FLUSH.

SPECIFICATION forming part of Letters Patent No. 705,933, dated July 29,1902.

Application filed July 5, 1901. Serial No. 67,236. (N0 model.)

of the United States, residing at San Francisco, in the county ofSanFrancisco and State of California, have invented certain newand-usefullmprovements in Trap-Flushes, of which thefollowingis aspcification.

My invention relates to an improved device for ushing traps such as areused in draingpipes from kitchen-sinks and other receptacles.

It is frequently the case that traps in drainpipes become'so clogged upwith refuse matter carried down with the water that itis irnpossible Vtoflush the same from the top through the drain-pipe. When this is thecase, it is necessary to open a vent provided for this purpose at thebottom of the trap,and thus permit the refuse matter to be dischargedtherefrom. Great difficulty is loften, experienced in opening suchvents, and, moreover, the operation is a dirty and disagreeable one.

The object of my invention is to provide an improved arrangement bymeans of which the trap can be readily flushed and emptied of anyrefusev matter accumulated therein and clogging up the same. K

My invention therefore resides in the novel construction, combination,and arrangement of parts for the above ends hereinafter fully specified,and particularly pointed lout in the claim. Y

In the accompanying drawings, Figure lis a perspective view showing asink and trap to which my improved device is applied, and Fig. 2 is alongitudinal section of the connection between the main water-supplypipe and the trap.

Referring to the drawings, l represents a sink, and 2 thecold-waterhsupply pipe leading thereto; 3 represents the drain-pipe, and4 a trap therein, all of the usual construction. From the supply-pipe 2to the trap 4 leads a conduit 5, having a short connection 6 openinginto the bottom of the trap. An angle-valve 7 is provided for normallyclosing said conduit. The connection 6 is preferably made to are ordiverge upwardly, as shown, the more readily to discharge and force therefuse matter up out of the trap.

It will be understood that my improved construction may be applied toall cases where the trap in the drain-pipe is in proximity to -awater-supply pipe conveying water under pressure; also, that the pointof entrance of the conduit into the trap and the form of said conduitmay be varied without departing from the spirit of my invention.

I claim- The combination of a drain-pipe having a U end therein to forma trap and having an aperture in the lowest part of said U end, asupply-pipe, a conduit leading from the supply-pipe to a point belowsaid trap, a valve in said conduit, and a removable connection betweenthe conduit and said aperture, said connection being open at both endsand having a conical inner surface, the smaller open end being connectedwith the 'Y conduit and the larger open end being connected with theaperture for the trap, substantially as described.

In witness whereof I have hereunto set my hand'in the presence of twosubscribing witnesses.

J. E. KEYT.

Witnesses:

J. RAYMOND SMITH, FRANCIS M. WRIGHT.

